The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2016
Filed:
Oct. 25, 2010
Applicants:
Akira Takahashi, Nagoya, JP;
Shogo Hirose, Gifu, JP;
Eriko Kodama, Nagoya, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 37/30 (2006.01); B01J 29/04 (2006.01); B01J 29/064 (2006.01); B01D 53/94 (2006.01); B01J 29/072 (2006.01); B01J 35/04 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); C04B 38/00 (2006.01); B01J 29/44 (2006.01); B01J 29/46 (2006.01); B01J 29/76 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
B01J 29/064 (2013.01); B01D 53/9418 (2013.01); B01J 29/072 (2013.01); B01J 35/04 (2013.01); B01J 37/0009 (2013.01); B01J 37/0201 (2013.01); C04B 38/0009 (2013.01); B01D 2251/2062 (2013.01); B01D 2255/104 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/502 (2013.01); B01D 2255/504 (2013.01); B01D 2257/702 (2013.01); B01J 29/44 (2013.01); B01J 29/46 (2013.01); B01J 29/7615 (2013.01); B01J 2229/186 (2013.01); C04B 2111/0081 (2013.01); C04B 2111/00413 (2013.01);
Abstract
A zeolite structure is provided which has partition walls composed of a zeolite ion-exchanged with a metal ion and forming a plurality of cells extending from one end face of the zeolite structure to its other end face and functioning as a passage of fluid and which has a honeycomb shape. The content per unit zeolite amount of the metal ion in the surface portion of the partition wall is larger than the content per unit zeolite amount of the metal ion in the inner portion of the partition wall and is preferably 1.1 to 5.0 times the content per unit zeolite amount of the metal ion in the inner portion of the partition wall.